Stone and like working machine



June 5, 3923.

K. R. HAERTING B. ASSEQ? STONE AND LIKE WORKING MACHINE Filed March 28,1921 Fig.1.

3 Sheets-Sheet 1 June 5, 1923.

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June 5, 1923. msww K. R. HAERTING STONE AND LIKE WORKING MACHINE FiledMarch 28. 1921 3 Sheets-Sheet 3 //7 veni'or':

Patented June 5, 1923..

nitas KARL BUDOLF HAEETING, OF BERLIN, GERMANY.

STONE AND LIKE WORKING JNIACT'IINE.

Application filed March as, 1921.

To all whom it may concern:

Be it known that I, KARL RUDoL-F HAnn- TING, a .citizen of the Republicof Germany, residing at Berlin, Germany, have invented certain new anduseful Improvements in Stone and like Working Machines (for which I havefiled applications in Germany, June 17th, 1919;'Sweden, Sept. 23rd,1920; Norway, Sept. 28th, 1920; Denmark, Sept. 30th, 1920; Spain, Sept.27th, 1920; Austria, Dec. 14th, 1920; Hungary, Dec. 15th 1920; GreatBritain, December 31st, 1920; danada, January 7th, 1921), of which thefollowing is a specification.

In the stone industry it is usual to employ machines for rammingmaterials into molds for making artificial stone work.

The present invention relates to a machine of this kind and consists inthe provision of means as hereinafter set forth and claimed foroperating the ram and accelerating its drop as well as for controllingthe gearing so that the ram can be conveniently put into and out ofoperation.

In the accompanying drawings, the invention is illustrated by way ofexample,

Fig. 1 representing a side-view of the complete arrangement,

Fig. 2, a sectional view of the machine head showing the position of theelements when the ram is in gear, and

Fig. 3, a similar View showing the position of the elements during thegrinding or polishing operation.

Fig. 4 is a view of the ram operating elements shown at right angles toFig. 2.

The main shaft 1 of the machine is mounted in a vertical positionbetween suitable wall or like brackets and may receive its mo tion froma belt working on pulleys 2 of which one is loose. A belt-shifter 3 isemployed for putting the machine into and out of operation. A jointedarm 5 is arranged so as to be adjustable in a horizontal plane, eitherabout the shaft 1 or about one which is co-axial therewith. The armcarries an idle pulley 6 which is exchangeable for varying the gearingand which derives its motion from a pulley 4 secured to the shaft 1. Thepulley 6 transmits the motion to a vertical shaft 7 arranged in the headof the machine at the outer end of the carrier arm 5. The shaft 7 isadapted for axial displacement in its bearings, and its driving pulleyis slidably feathered thereon to allow such adjustment. The operatinglever 8, which is piv- Serial No. 456,137.

oted to the arm 5, is also pivoted to a collar on the shaft 7 for thecontrol of the latter.

Figs. 2 and 4 show the ramming device which is of known construction andwhich consists of .a ram 12 and of a horizontal operating shaft 14. Asector. 13 on the shaft 14 rotates with the shaft and engages the ram soas to raise it, the ram being supported at the opposite side by rollers24 and 25. As the sector turns away from. the ram, the latter drops ontothe work. At the same time as the ram is released by the sector 13 it isengaged for a moment by a friction wheel 17 which moves in the oppositedirection from sector 13 and which thus accelerates the drop of the ram.The wheel 17 is connected by means of a shaft 19 to arms 23 which arerocked about a pivot 26 by means of tappet wheels 18 the latter beingconnected to the shaft 14.

The shaft 14 carries a bevel gear 16 which meshes with a similar gearwheel 15 connected to the shaft 7 and receives its motion therefrom. Tohold the wheel in mesh, the operating lever 8 is fastened to a link orhook 11, and the lever is only used for changing the position of the armrelative to the work. A collar 20, secured to the shaft 7 by means of apin 21, bears against the machine frame and cooperates with the hook 11for determining the position of the shaft.

When the ramming has to be frequently interrupted, a spring 9 may beconnected to the lever 8 for holding the wheel normally in gear. Whenthis spring is in use, the shaft 7 may be locked out of gear by means ofa collar 20 which for this purpose is connected to the shaft by means ofa pin 22.

The machine may either be mounted in a fixed position or adapted fortravel, and means may in either case be provided for varying thealtitude of the carrier arm to suit the work. In the case of atravelling machine, an electro-motor may be used for its operation. Whenthe position of the machine is fixed, the work is preferably supportedon low trucks which can be run under the machine, the weight beingtransferred from the truckcwheels during the work to suitable trestlesor other rigid supports.

I claim:

1. A radial stone and like working machine, comprising a verticallyreciprocating ram, a horizontal operating shaft, a sector mounted onsaid shaft so as to engage and raise the ram by friction and then let itdrop, an acceleration shaft rotating in op posite direction from theoperating shaft, pivoted arms holding said acceleration shaft, afriction Wheel connected to said latter shaft, tappets connected to theoperating shaft so as to co-operate with said arms for rocking the sameso as to apply the friction Wheel to the ram at the moment it is aboutto drop, a vertical axially adjustable driving shaft geared to theoperating shaft, and a hand lever controlling said driving shaft.

2. A radial stone and like Working machine, comprising a verticallyreciprocating ram, a horizontal operating shaft, a sector mounted onsaid shaft so as to engage and raise the ram by friction and then let itdrop, an acceleration shaft rotating in opposite direction from theoperating shaft, pivoted arms holding said acceleration shaft, afriction Wheel connected to said latter shaft, tappetsconnected to theoperating shaft so as to cooperate With said arms for rocking the sameso as to apply the friction Wheel to the ram at the moment it is aboutto drop, a vertical axially adjustable driving shaft geared to theoperating shaft, a hand lever controlling said driving shaft, and a hookadapted for connection to said lever so as to hold the two shafts ingear.

KARL RUDOLF HAERTING.

